cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A088995 Least k > 0 such that the first n digits of 2^k and 5^k are identical.

Table of values

n a(n)
1 5
2 98
3 1068
4 1068
5 127185
6 2728361
7 15917834
8 73482154
9 961700165
10 961700165
11 83322853582
12 1404948108914
13 7603192018819
14 167022179253602
15 3550275020220728
16 5729166542536373
17 106675272785875442
18 331484151442699072
19 2330288635428230258177
20 2330288635428230258177

List of values

[5, 98, 1068, 1068, 127185, 2728361, 15917834, 73482154, 961700165, 961700165, 83322853582, 1404948108914, 7603192018819, 167022179253602, 3550275020220728, 5729166542536373, 106675272785875442, 331484151442699072, 2330288635428230258177, 2330288635428230258177]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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